County annual report · FIPS 24510
2021 Baltimore city, MD Power Outage Report
In 2021, customers in Baltimore city, MD went without power for an average of 3.9 hours, a total of 1.1M customer-hours (Maryland average 2.5 hours). That ranks 3rd worst of 24 Maryland counties and 1560th of 2,974 nationally.
Compared with MD, the US and 2020
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Baltimore city, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 9, 2021 12:00 | August 28, 2021 14:15 | 19d 2h | 15,390 | 372K |
| 2 | April 25, 2021 09:00 | May 7, 2021 02:30 | 11d 17h | 7,828 | 34K |
| 3 | June 1, 2021 10:45 | June 25, 2021 03:00 | 23d 16h | 5,801 | 119K |
| 4 | June 25, 2021 11:15 | August 1, 2021 06:30 | 36d 19h | 5,384 | 223K |
| 5 | April 21, 2021 17:30 | April 24, 2021 04:45 | 2d 11h | 3,353 | 7,042 |
| 6 | May 26, 2021 05:30 | June 1, 2021 02:00 | 5d 20h | 3,352 | 27K |
| 7 | December 10, 2021 12:00 | December 31, 2021 00:15 | 20d 12h | 3,208 | 25K |
| 8 | August 4, 2021 12:45 | August 5, 2021 07:00 | 18h 15m | 2,952 | 3,311 |
| 9 | October 25, 2021 11:00 | November 5, 2021 10:15 | 10d 23h | 2,911 | 22K |
| 10 | September 17, 2021 13:15 | October 6, 2021 04:45 | 18d 15h | 2,846 | 23K |
Outage episodes by size in 2021: 84 reached 100+ customers, 33 reached 1,000+ customers, 1 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Baltimore city reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Baltimore Gas & Electric Co | 2021 | 2.4 hrs | 1.02 | 77 min | 0.77 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of Maryland's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 277,924 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Baltimore city has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Baltimore city, MD annual power outage report, 2021, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/maryland/baltimore-city